331230004 has 36 divisors (see below), whose sum is σ = 677276964. Its totient is φ = 141326976.

The previous prime is 331229959. The next prime is 331230037. The reversal of 331230004 is 400032133.

It can be written as a sum of positive squares in 2 ways, for example, as 152473104 + 178756900 = 12348^2 + 13370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 331230004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42042 + ... + 49294.

It is an arithmetic number, because the mean of its divisors is an integer number (18813249).

Almost surely, 2^331230004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331230004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338638482).

331230004 is an abundant number, since it is smaller than the sum of its proper divisors (346046960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331230004 is a wasteful number, since it uses less digits than its factorization.

331230004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504 (or 7495 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 331230004 is about 18199.7253825436. The cubic root of 331230004 is about 691.8998290189.

Adding to 331230004 its reverse (400032133), we get a palindrome (731262137).

The spelling of 331230004 in words is "three hundred thirty-one million, two hundred thirty thousand, four".